DE69937509T3 - Multilayer, decorative lighting - Google Patents

Multilayer, decorative lighting

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Publication number
DE69937509T3
DE69937509T3 DE69937509T DE69937509T DE69937509T3 DE 69937509 T3 DE69937509 T3 DE 69937509T3 DE 69937509 T DE69937509 T DE 69937509T DE 69937509 T DE69937509 T DE 69937509T DE 69937509 T3 DE69937509 T3 DE 69937509T3
Authority
DE
Germany
Prior art keywords
layer
decorative
base layer
light source
interior
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69937509T
Other languages
German (de)
Other versions
DE69937509D1 (en
DE69937509T2 (en
Inventor
Gregory James Rensch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boeing Co
Original Assignee
Boeing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
Priority to US16057 priority Critical
Priority to US09/016,057 priority patent/US6092915A/en
Application filed by Boeing Co filed Critical Boeing Co
Priority to EP99200023A priority patent/EP0933256B2/en
Publication of DE69937509D1 publication Critical patent/DE69937509D1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21775147&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69937509(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Publication of DE69937509T2 publication Critical patent/DE69937509T2/en
Application granted granted Critical
Publication of DE69937509T3 publication Critical patent/DE69937509T3/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/60Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
    • B60Q3/62Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
    • B60Q3/64Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for a single lighting device
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/70Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose
    • B60Q3/78Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for generating luminous strips, e.g. for marking trim component edges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/40Properties of the layers or laminate having particular optical properties
    • B32B2307/412Transparent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/40Properties of the layers or laminate having particular optical properties
    • B32B2307/414Translucent

Description

  • FIELD OF THE INVENTION
  • The present invention relates to a decorative lighting laminate, and more particularly to a decorative laminate which shields light source components from view.
  • BACKGROUND OF THE INVENTION
  • The design and manufacture of decorative illuminated parts are often expensive. The cost is partly due to the design, manufacture and installation of optical display lenses in the decorative part. In addition, display lenses often reduce the aesthetic appearance of the decorative illuminated part. Furthermore, these lenses require cleaning and maintenance, which is both time consuming and significantly reduces the durability of the lens. For decorative illuminated parts which are installed in the interior of a commercial aircraft, display lenses increase the total weight of the component part, which is economically disadvantageous.
  • The GB-A-1461266 discloses a process for producing laminates comprising at least one solid thin layer bonded to at least one thin layer of glass forming a surface of the laminate.
  • The US-A-4648690 discloses a light diffusing device for an illuminated corner plate, the device comprising a thin transparent light transmitting base plate, a light scattering layer formed on a front surface of the base plate, and a light reflecting surface proximate the rear surface of the base plate is formed. The base plate and the light-diffusing layer are integrally connected to each other by an intermediate layer formed between the base plate and the light-diffusing layer.
  • The US-A-2660824 discloses an instrument panel of an aircraft according to the preamble of claim 1 of the type which is internally illuminated and wherein the various engraved letters are sharply defined with uniform intensity and independent of the distances of such letters from the light source or sources. The plate comprises a body of a transparent material having a proximate layer of a translucent material layered on the front surface thereof and an outer layer of an opaque material layered over the translucent layer, the outer layer having apertures therethrough expose the underlying portions of the translucent layer and define marks, means for guiding light to the transparent body to illuminate the translucent layer and the apertures in the opaque layer, a light concentrating coating which covers only those areas of the back surface of the transparent layer Covered body disposed behind such openings in the opaque outer layer, which are offset from the light-supplying means to compensate for the intensity of fluoroscopy at the plurality of openings and an opaque shield member disposed behind the transparent body and coextensive therewith and having a coating of a dark nonreflective material along the portions of the front surface thereof to provide forward reflection of the light behind the panel adjacent the edges of the the latter escapes to prevent.
  • There is a requirement for decorative illuminated parts which can be easily designed and manufactured without the disadvantages associated with display lenses. There is also a requirement to provide decorative illuminated parts with improved aesthetics. The present invention seeks to meet these requirements and provides other related advantages.
  • Summary of the invention
  • The present invention provides a decorative lighting laminate that can be made to glow or light up while shielding light source components from being seen invisibly. The decorative lighting laminate includes hidden or covered signal lighting, which may be illuminated as needed. If the signal illumination is not illuminated, the light source components are hidden by the translucent cover of the laminate. The decorative lighting laminate is made of a decorative laminate having a transparent base layer and a thin translucent decorative cover layer. In a preferred embodiment, the base layer is made of a clear polycarbonate material. The decorative covering layer of the laminate is also a light-transmitting layer, but unlike the transparent base layer, the decorative layer is translucent and has an opacity sufficient to shield the light source from sight when not illuminated. The decorative layer is preferably formed of a thermoplastic resinous material, which may include, for example, an organic fluoropolymer, such as, e.g. A polyvinyl fluoride or a polyvinylidene fluoride polymer, includes. The decorative layer of the laminate is secured to the base layer by a third intermediate layer comprising an adhesive material.
  • The decorative laminate according to the invention can be modeled and shaped in various shapes and configurations, such. In a decorative part of an interior usable for a variety of applications including, for example, parts of an interior of a commercial aircraft. In general, one or more light sources may be combined with the modeled decorative laminate such that a decorative lighting laminate is formed. Placing a light source adjacent to the transparent base layer allows the laminate to transmit the light while, due to the translucent decorative cover layer, shielding the light source from sight.
  • When formed into a part, the decorative lighting laminate of the present invention is particularly applicable to parts of an interior of a commercial aircraft to display emergency exits and emergency routes, and to illuminate and display emergency exit door and / or window handles.
  • Brief description of the drawings
  • The foregoing aspects and many of the attendant advantages of this invention will be more readily understood as the same becomes better understood by reference to the following detailed description and upon reference to the accompanying drawings.
  • In 1 Fig. 10 is a cross-sectional view of a decorative lighting laminate formed in accordance with the present invention;
  • 2A Fig. 12 is a plan view of a lit representative decorative lighting laminate, a door handle cover formed in accordance with the present invention;
  • 2 B is a plan view of the non-illuminated door handle cover the 2A ;
  • 3 Fig. 12 illustrates a representative decorative lighting laminate, a door handle cover, formed in accordance with the present invention and disposed on the inner surface of an aircraft emergency exit;
  • 4 FIG. 12 is a cross-sectional view of a representative decorative lighting laminate, the door handle cover, which is shown in FIG 3 is shown.
  • Detailed Description of the Preferred Embodiment
  • In one aspect, the present invention provides a decorative light-transmitting laminate useful for forming decorative illuminated portions of an interior, for example, portions of an interior of a commercial aircraft. When formed in a portion of an interior, the modeled laminate can be combined with one or more light sources to provide a decorative lighting laminate that will glow or glow as needed. When not illuminated, the laminate has an opacity sufficient to obscure or shield a view of the light source component.
  • A decorative laminate according to the invention is a light-transmitting laminate which has a transparent, light-transmitting base layer and a light-transmitting, light-transmitting decorative cover layer. The decorative layer is secured to the base layer by an intermediate layer which comprises an adhesive material. The transparent base layer and the translucent decorative cover are made of a moldable thermoplastic resinous material. Both the base layer and the decorative top layer are light transmitting; wherein the base layer is substantially transparent (i.e., made of one or more transparent or semi-transparent plastic materials) and the decorative cover is translucent. The decorative cover of the laminate has an opacity sufficient to shade a view of a light source component located near the base layer.
  • The transparent, light-transmitting base layer of the laminate imparts structural integrity to the laminate. The base layer may be made of any suitable transparent and moldable thermoplastic resinous material. In a preferred embodiment, the base layer is made of a clear polycarbonate layer. Alternatively, the base layer can be made from the combination of multiple layers of a glass fiber polyester prepreg, a fibrous material in the form of a layer or on a mandrel on which resin is applied to produce a reinforced plastic product. Other transparent thermoplastic materials suitable for the base layer include Lexan ® polycarbonate (PC) (General Electric), Declar ® polyether ketone ketone (PEKK) (DuPont), and Radel ® polyphenylene sulfone (PPS) (Amoco Performance Products). The base layer can also be a glass fiber laminate such. A modeled glass fiber epoxy resin or a glass fiber polyester laminate, which has one to about 10 layers (each layer has a thickness of about 0.25 mm (0.010 inches)). Preferably, the base layer has a thickness in the range of about 0.010 inch to about 0.125 inch.
  • The decorative topcoat of the laminate can be made from a suitable translucent, modelable thermoplastic resinous material. Preferred thermoplastic materials include fluorinated organic polymeric materials such as polyvinyl fluoride (PVF) and polyvinylidene fluoride (PVDF) polymeric materials. Preferably, the decorative cover layer has a thickness of from about 0.038 mm (0.0015 inches) to about 0.1 mm (0.0040 inches). In a preferred embodiment, the decorative cover is a thermoplastic film, such as. As a PVF or a PVDF film. A preferred PVF film is commercially available from EI DuPont de Nemours & Co. (Wilmington, DE) under the designation Tedlar ®. A preferred PVDF film is commercially available from Avery Dennison (Portage, IN) under the designation AVImark ® available.
  • In a preferred embodiment, the decorative light-transmitting laminate of the present invention has a transparent base layer made of a transparent polycarbonate and a translucent decorative cover made of a fluorinated organic polymer material selected from PVF and PVDF polymeric materials is on.
  • The decorative laminate of the invention is a thermoplastic sheet material which is prepared by laminating the light-transmitting decorative cover on a surface of the transparent base layer under pressure. For example, in a preferred embodiment, a thin film of the translucent Tedlar ® is laminated on a transparent transparent polycarbonate layer under pressure.
  • After the decorative laminate sheet material for the decorative laminate layer has been prepared, the sheet material may be thermoformed on a mold to provide a molded decorative laminate (i.e., a decorative laminate part). The shape may be, for example, a structured shape. Therefore, depending on the specific shape, the decorative laminate sheet material may be formed in a variety of decorative parts including, for example, interior decorative parts of a commercial aircraft. Examples of interior commercial aircraft parts that may be readily formed from the decorative laminate sheet material include door liners and window panels, door handle covers, emergency route indicator strips, cargo box covers / cargo boxes, passenger service unit (PSU) spacer panels, cockpit interior window panels. Consoles, instrument panels, cup holders, and pocket holders for sun visors and reference manuals. Other decorative parts comprising panels, panels, signboards and covers can also be made in a similar manner using the decorative laminate sheet material of the present invention.
  • When combined with one or more light sources, a molded decorative laminate member formed from the decorative laminate sheet material provides a decorative lighting laminate (ie, a decorative lighting laminate piece) that may be configured to glow or illuminate upon demand it shields light source components from sight. As noted above, such a decorative lighting laminate is particularly useful in interiors of a commercial aircraft to illuminate emergency routes, exits and handles for an exit door and / or a window. Since the light source components of these decorative lighting laminates are hidden from view, these decorative parts enhance an aesthetic appearance as compared with other decorative parts with light sources that are visible.
  • Suitable light sources which are useful in the decorative lighting laminate according to the invention include point light sources, such. As light bulbs and light-emitting diodes (LEDs), and scatter light from remote light sources. The light sources generally provide signal illumination, for example, emergency signal illumination. In a preferred embodiment, the decorative lighting laminate part comprises a panel of LEDs. Alternatively, the light source may comprise a remote light source coupled to one or more optical fibers terminating at the transparent base layer of the decorative laminate.
  • A layer containing an adhesive material secures the decorative layer to the base layer. Regarding 1 is a decorative layer 20 through an adhesive-containing layer 22 at the base layer 30 attached. The layer 22 may include any adhesive material suitable for securing the decorative layer to the base layer. Suitable adhesive materials include thermoplastic and thermosetting adhesive materials, such as. Acrylic resin and polyurethane adhesive materials. In a preferred embodiment, the adhesive material is a About 0.0051 mm (0.2 mil) thick acrylic resin adhesive commercially available from DuPont under the designation Acrylic Resin Adhesive 68080 or 68040. Thermoplastic and thermosetting adhesives are particularly preferred for laminates of the present invention which are formed by thermoforming processes.
  • Other suitable adhesive materials include pressure sensitive and heat activatable adhesive materials. Pressure sensitive adhesive materials may be applied as a film or coating. Suitable pressure sensitive adhesives include, for example, a 0.076-0.152 mm (3-6 mil) thick adhesive available from 3M Company (Knoxville, IA) under the designation 468MPF. In a preferred embodiment, the pressure sensitive adhesive is a 0.076 mm (3 mil) adhesive available from Bostik Inc. (Middleton, MA) under the designation S408-4084. Alternatively, the adhesive material may be a heat activatable adhesive. Preferred heat activatable adhesives include thermoset and thermoplastic adhesives. Thermosetting adhesives can be combined with solvents and applied by spraying. The decorative layer of the laminate may be attached to the base layer by heating it to cure the adhesive material. In a preferred embodiment, the heat activatable adhesive is a 0.038 mm (1.5 mil) thermoplastic adhesive film available from Bostik under the designation 10-309-1.5. The pressure-sensitive and heat-activatable adhesives are particularly preferred for the laminates of the present invention which are formed by winding the decorative layer on top of a base layer formed from a molded glass fiber laminate, for example a glass fiber epoxy resin laminate.
  • The present invention also provides a method of forming a decorative lighting laminate (e.g., a light portion for an interior of an aircraft). In one method, a translucent decorative layer is formed on a transparent base layer, for example by pressure lamination. In the pressure lamination process, an adhesive layer is present between the decorative layer and the base layer. The resulting light-transmitting laminate may then be thermoformed onto a mold (e.g., a mold for a lighting portion of an interior of an aircraft, for example, comprising a textured form that imparts a surface texture to the surface of the laminate) to form a molded, To provide light-transmitting laminate. Alternatively, Tedlar covered layers of transparent base materials (eg, Declar, which is commercially available from DuPont and Lexan, which is commercially available from General Electric) can be directly thermoformed. In another method, the translucent decorative layer may be laminated to an already formed transparent base layer. For example, the decorative layer may be applied to a molded base layer made of a glass fiber laminate, such as glass fiber laminate. B. from a glass fiber-epoxy resin laminate, which is coated with an adhesive material is made, are hand-wound. The final decorative lighting laminate or lighting part is then assembled by attaching at least one light source (eg, an LED or a panel of LEDs) to the molded laminate in the vicinity of the base layer.
  • A cross-sectional view of a portion of the decorative lighting laminate formed according to the invention is shown in FIG 1 shown. Regarding 1 includes a decorative lighting laminate 10 a translucent decorative cover layer 20 , an intermediate layer 22 and a transparent base layer 30 , As described above, a moldable decorative laminate layer may be a base layer 30 and a decorative cover 20 includes, for example, be formed by thermoforming. Once the decorative laminate is formed into a particular shape and configuration that defines, for example, a lighting portion of an interior of an aircraft, one or more light sources may be provided 40 be added to the part by, for example, the light source at the base layer 30 is attached. A power supply for the light source 40 is through a supply line 42 available.
  • A plan view of a representative decorative lighting laminate part formed in accordance with the present invention, a door handle cover is shown in FIG 2A and 2 B shown. 2A put the cover 50 lit and 2 B represents the unlighted cover. As is in 2 B and discussed above, the light sources of the decorative lighting laminate are not visible unless the light sources are burning.
  • Decorative lighting laminates formed according to the present invention are useful as parts for interiors of a commercial aircraft and a military aircraft, as well as interiors of an automobile, a truck, a train and a bus. 3 provides a representative decorative lighting laminate, a door panel 50 on an emergency exit 60 is an aircraft disposed, is a cross-sectional view of the cover 50 is in 4 shown. Regarding 4 includes the cover 50 a translucent decorative cover layer 20 , an intermediate layer 22 , a transparent base layer 30 and light sources 40 (with supply lines 42 ).
  • The present invention provides a decorative light-transmitting laminate that can be formed and formed in components or parts of an interior of an aircraft that are configured to be lit, shaped, or on demand. These interior parts are decorative because there is no visible indication of a display until light sources associated with the part are illuminated. The decorative lighting laminates formed according to the present invention do not include lenses and have no optical surfaces. Therefore, the laminate parts do not require optimization of light transmission. Decorative illuminated laminates formed in accordance with the present invention are particularly useful for indicating indoor exits and pathways of a commercial aircraft under emergency conditions. The decorative lighting laminate may also be used for non-emergency applications, including, for example, a representation of an airline logo or trademark.
  • While the preferred embodiment of the invention has been illustrated and described, it is to be understood that various changes may be made therein without departing from the scope of the invention as defined by the claims.

Claims (12)

  1. A lighting part for an interior of an aircraft, comprising: - a first transparent base layer ( 30 ); A second translucent decorative layer ( 20 ); and - a third layer ( 22 ) between the base layer and the decorative layer comprising an adhesive material, the decorative layer ( 20 ) on the base layer ( 30 ) is trained; A light source ( 40 ), which are close to the base layer ( 30 ) is arranged; and - wherein the decorative layer ( 20 ) has an opacity sufficient to cause the light source ( 40 ) from sight, when not illuminated, characterized in that - the decorative layer has such translucent properties that the light source ( 40 ) near the transparent base layer ( 30 ) Light can transfer while the decorative layer ( 20 ) the light source ( 40 ) shields from sight; and - that the light source on the base layer on the side opposite the decorative layer ( 20 ) is attached.
  2. An interior lighting part of an aircraft according to claim 1, wherein said base layer ( 30 ) comprises a transparent polycarbonate.
  3. An interior lighting part of an aircraft according to claim 1 or 2, wherein the base layer ( 30 ) comprises a glass fiber laminate.
  4. The aircraft interior trim part of claim 3, wherein the glass fiber laminate is selected from the group consisting of glass fiber epoxy resin and glass fiber polyester laminates.
  5. An interior lighting part of an aircraft according to any one of claims 1-4, wherein the base layer ( 30 ) has a thickness of between about 0.25 mm (0.010 inches) and about 3.18 mm (0.125 inches).
  6. Lighting component for an interior of an aircraft according to one of claims 1-5, wherein the decorative layer ( 20 ) has a thickness between about 0.038 mm (0.0015 inches) and about 0.2 mm (0.0040 inches).
  7. An interior lighting part of an aircraft according to any one of claims 1-6, wherein the decorative layer ( 20 ) comprises a fluorinated organic polymer material selected from the group consisting of a polyvinyl fluoride and a polyvinylidene fluoride polymer material.
  8. An interior lighting component of an aircraft according to any one of claims 1-7, wherein the adhesive material comprises an acrylic adhesive.
  9. Lighting component for an interior of an aircraft according to one of claims 1-8, wherein the light source ( 40 ) is a light-emitting diode.
  10. Lighting component for an interior of an aircraft according to one of claims 1-9, wherein the light source ( 40 ) comprises a field of light-emitting diodes.
  11. Method for forming an illumination part of an interior of an aircraft, comprising: laminating a translucent decorative layer ( 20 ) on a transparent base layer ( 30 ) to form a light-transmitting laminate, the decorative layer ( 20 ) by an intermediate layer ( 22 ), which comprises an adhesive material, on the base layer ( 30 ) is attached; Thermoforming the laminate onto a mold to provide a formed laminate; and - attaching at least one light source ( 40 ) on the molded laminate to a To provide lighting part of an interior of an aircraft, wherein the light source ( 40 ) near the base layer ( 30 ) is arranged; and - wherein said translucent layer ( 20 ) has an opacity sufficient to cause the light source ( 40 ) from sight, when not illuminated, characterized in that - the decorative layer has such translucent properties that the light source ( 40 ) near the transparent base layer ( 30 ) Light can transfer while the decorative layer ( 20 ) the light source ( 40 ) shields from sight; and that the light source on the side opposite the decorative layer ( 20 ) is mounted on the base layer.
  12. A method according to claim 11, which comprises using a lighting part of an interior of an aircraft according to any one of claims 1-10.
DE69937509T 1998-01-30 1999-01-06 Multilayer, decorative lighting Expired - Lifetime DE69937509T3 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US16057 1998-01-30
US09/016,057 US6092915A (en) 1998-01-30 1998-01-30 Decorative lighting laminate
EP99200023A EP0933256B2 (en) 1998-01-30 1999-01-06 Decorative lighting laminate

Publications (3)

Publication Number Publication Date
DE69937509D1 DE69937509D1 (en) 2007-12-27
DE69937509T2 DE69937509T2 (en) 2008-09-18
DE69937509T3 true DE69937509T3 (en) 2012-02-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE69937509T Expired - Lifetime DE69937509T3 (en) 1998-01-30 1999-01-06 Multilayer, decorative lighting

Country Status (6)

Country Link
US (1) US6092915A (en)
EP (1) EP0933256B2 (en)
CN (1) CN1115506C (en)
CA (1) CA2256959C (en)
DE (1) DE69937509T3 (en)
ES (1) ES2300131T5 (en)

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EP0933256B1 (en) 2007-11-14
DE69937509T2 (en) 2008-09-18
ES2300131T5 (en) 2011-11-21
EP0933256B2 (en) 2011-09-14
CN1115506C (en) 2003-07-23
CA2256959C (en) 2007-05-29
CN1228519A (en) 1999-09-15
ES2300131T3 (en) 2008-06-01
CA2256959A1 (en) 1999-07-30
DE69937509D1 (en) 2007-12-27
EP0933256A3 (en) 2001-11-21
US6092915A (en) 2000-07-25

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